Bob makes vape pens and he also makes cartridges too. Bob thinks he’s pretty damned good and very well priced. Top-notch distillate and terpenes. That’s it. That’s all. What you see is what you get. Quality, all day long. Also, Bob stuffs 0.6g of product into these 0.5g cartridges too. Because value. Use Bob Refill Cartridges for your Bob Vape Pen when you need more juice.